I was one of the posters on the link and I have to say my set up has worked wonderfully so far. I couldn't find any 6" pnuematic wheels, so I bought the 8" and had to make another steering axle set up, which raised the front end slighly compared to the rear. The side benefit is it gives me extra ground clearance. These units sit notoriously low, especially on an uneven site next to the trailer where it's filled. The biggest issue I've had is keeping air in the cheap-o innertubes. I finally installed green slime last season. Hopefully this will keep them in flated. Rubber tires rock, though!